Yields:

Yield Parameters:

Returns:

# File 'lib/rdf/vocab.rb', line 57defself.each(&block)ifself.equal?(Vocabulary)# This is needed since all vocabulary classes are defined using# Ruby's autoloading facility, meaning that `@@subclasses` will be# empty until each subclass has been touched or require'd.RDF::VOCABS.each{|v|require"rdf/vocab/#{v}"unlessv==:rdf}@@subclasses.each(&block)else# TODO: should enumerate vocabulary-specific defined properties.endend